CN109537535A - A kind of plane binodal emergency gate closing door conducive to dynamic water - Google Patents
A kind of plane binodal emergency gate closing door conducive to dynamic water Download PDFInfo
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- CN109537535A CN109537535A CN201811455633.6A CN201811455633A CN109537535A CN 109537535 A CN109537535 A CN 109537535A CN 201811455633 A CN201811455633 A CN 201811455633A CN 109537535 A CN109537535 A CN 109537535A
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- gate
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- section gate
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/22—Stop log dams; Emergency gates
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a kind of plane binodal emergency gates that door is closed conducive to dynamic water, using slidably supported pattern, it is installed on emergency gate gate slot, two sides are water inlet passage side wall in front of emergency gate gate slot, emergency gate gate slot bottom is water inlet passage bottom plate, the top of emergency gate is equipped with lifting lug, two sides are equipped with the sliding block that bearing emergency gate slides up and down in gate slot, the emergency gate includes the upper half-section gate and lower half-section gate being made of door leaf stringer and door leaf crossbeam, the upper half-section gate locating has the first upstream face plate, the lower half-section gate locating has downstream panel and the second upstream face plate, it is connected between the upper half-section gate and lower half-section gate by wirerope, baffle is additionally provided between the upper half-section gate and lower half-section gate.The present invention can more fully utilize water column pressure during dynamic water closes door, and to overcome frictional resistance, that realizes gate smoothly closes door.
Description
Technical field
The invention belongs to hydraulic and hydroelectric engineering field of steel structure, and in particular to one kind is conducive to slidably supported plane binodal accident
Gate smoothly closes the new figure of door in dynamic water, and the plane emergency gate for mainly solving to reclose door using water is in dynamic water because closing door
Power is insufficient and falls Practical Project problem not in place.
Background technique
Gate is movable water-retaining structure in hydraulic structure.It closed with it, open or locally open water hole mouth, with
Control water level, adjust flow etc..Therefore, the safety and stability of gate is of great significance for the normal operation of key water control project.It is flat
Face gate because of simple structure, using light and handy, maintenance is convenient, it is cheap, the arrangement of building is required it is lower and easy to accomplish,
It is widely used in hydraulic engineering all the time.However, often needing to meet with the construction of the big library water-control project of high dam
The service condition of high water head, big discharge, plane emergency gate in the dynamic water can normal switching-off and its during the shutdown process
Hydrodynamic characterisitic is always focal issue of interest in gate design and utilization.In engineering practice, Chang Fasheng gate closes door
Shi Menye self weight and water column pressure are not enough to overcome frictional resistance, to cause plane emergency gate to close badge resistance, or even can not be complete
The engineering problem of contract fully seriously threatens the safety of unit and upstream and downstream building.
In the design of plane emergency gate hoisting capacity, when gate closes a power deficiency, often depend upon increase counterweight, by
Water column pressure or directly increased by opening and closing device as ballast, which closes door, makes every effort to promote into gate and lands.Gate is increased by increasing counterweight
While closing power, Qi Menli is also increase accordingly, thus this mode is by the structural bearing capacities such as headstock gear capacity and work bridge
Limitation it is larger, need to can implement through checking in the case where meeting the requirements.Door is closed as ballast increase using by opening and closing device
The mode of power is unsuitable for winch hoist suitable for fluid pressure type opening and closing device and the worm-type open-close machine of small-sized culverts and water gates, because
This its scope of application has biggish limitation.In summary condition should be paid the utmost attention to using " self weight Xiamen " or " self weight plus water
Column pressure " increase gate closes power.However, the common plane emergency gate for closing door using water column closes a process in dynamic water
In, while vertical water pressure increases, horizontal thrust suffered by gate is also significantly increased, and is often led to gate when small guide vane and is self-possessed
Add water to be not enough to overcome the frictional resistance as caused by horizontal thrust again, lead to problems such as gate close badge resistance, fall it is not in place.
Summary of the invention
Purpose of the invention is to overcome the shortcomings in the prior art, provides a kind of plane binodal that door is closed conducive to dynamic water
Emergency gate since self weight adds water to be not enough to overcome frictional resistance again and is led to solve emergency gate during dynamic water closes door
Cause close badge resistance, gate fall the Practical Projects problem such as not in place.Meanwhile the plane emergency lock for having put into operation in practice
Door can be significantly increased under the conditions of gate slot is limited, through the Optimal improvements to gate structure and act on erecting on gate
To water pressure, gate is promoted smoothly to close；The advantage is that can more fully utilize water colunm pressure during dynamic water closes door
Power, to overcome frictional resistance, that realizes gate smoothly closes door.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of plane binodal emergency gate closing door conducive to dynamic water is installed on emergency gate door using slidably supported pattern
Slot, emergency gate gate slot front two sides are water inlet passage side wall, and emergency gate gate slot bottom is water inlet passage bottom plate, accident
The top of gate is equipped with lifting lug, and two sides are equipped with the sliding block that bearing emergency gate slides up and down in gate slot, the emergency gate packet
The upper half-section gate and lower half-section gate being made of door leaf stringer and door leaf crossbeam are included, the upper half-section gate locating has on first
Panel is swum, the lower half-section gate locating has downstream panel and the second upstream face plate, the upper half-section gate and lower half-section gate
Between by wirerope connect, be additionally provided with baffle between the upper half-section gate and lower half-section gate.
Further, the baffle is connected by wirerope with the root edge of the upper half-section gate, baffle and lower half-section lock
Using welding or articulated connection between door.
Further, the reasonable wide design size of upper half-section gate root edge bottom end and lower half-section gate upper-end contact is
After finger adds baffle, upper half-section gate only has back rake angle root edge and when lower half-section gate contacts, and upper and lower two sections gate is in downstream face
There are one section of gaps for meeting, rationally design barrier width according to this section of gap.Making it not influences half-section gate and lower half-section gate
Contact and gate normal opening and closing, and when the vertical water pressure that gate is born reaches peak value, vertical resultant force is no more than gate
The capacity of opening and closing device.Common, upper half-section gate back rake angle root edge bottom end and the width of lower half-section gate upper-end contact are less than
The size of upper half-section gate back rake angle root edge width.
Further, it is used between baffle and lower half-section gate when welding connecting mode and is conducive to the half-section under emergency gate
Upper half-section gate smoothly drops down onto lower half-section gate top after gate falls on gate slot bottom sill；When using articulated connection mode, two
During saving gate while falling, steel wire tensioning, baffle is upright,
The vertical water pressure of lower half-section gate can be increased, guarantee that lower half-section gate drops down onto bottom sill；Instantly half-section closing gate,
When upper half-section gate continues to fall, the vertical spacing of looseness of steel wire ropes, two section gates is gradually reduced, with upper half-section gate bottom phase
The wirerope of connection starts to relax, and baffle swims side opening gradually downward under flow action, and two section gatehouse water flows are smooth, to protect
Half-section gate is smoothly fallen on card completely attaches to lower half-section gate.
Further, it is connected with each other between the downstream panel and the second upstream face plate by connecting cross beam.
Compared with prior art, the beneficial effects brought by the technical solution of the present invention are as follows:
1, the present invention can be without by bodily form optimization, being significantly increased and acting on gate under conditions of increasing counterweight
Vertical water pressure, thus achieve the effect that promote emergency gate smoothly close.
2, the present invention changes gate and closes door by the way of gate to be divided into two sections and increases baffle on lower half-section gate
When flow-shape, making to save the water body that flows through between gate above and below can both increase for lower half section gate on water may be again
Half-section gate provides lower suction, to solve that, due to closing a power deficiency, asking for vertical frictional resistance can not be overcome when gate falls
Topic achievees the effect that gate completely closes in dynamic water.
3, easily operated, function and effect clear advantage of the invention.
En
Detailed description of the invention
Fig. 1 is the schematic view of the front view of emergency gate of the present invention (connection type is articulated connection).
Fig. 2 be Fig. 1 in A-A to schematic cross-sectional view.
Fig. 3 is the schematic cross-sectional view of B-B direction in Fig. 1.
Fig. 4 is the enlarged structure schematic diagram that articulated connection mode is used between baffle and lower half-section gate.
Fig. 5 is the lasting force variation schematic diagram that gate substance type is measured during decline in the prior art.
Fig. 6 is gate of the present invention measured lasting force variation schematic diagram during decline.
Appended drawing reference: 1- lifting lug；2- sliding block；3- door leaf stringer；4- baffle；The downstream 5- panel；6- door leaf crossbeam；7- first
Upstream face plate；8- root edge；9- wirerope；10- articulated connection；11- connecting cross beam；The second upstream face plate of 12-；13- root edge；14-
Water inlet passage bottom plate；15- water inlet passage side wall；16- emergency gate gate slot
Specific embodiment
The invention will be further described with reference to the accompanying drawing.
As shown in Figures 1 to 4, a kind of plane binodal emergency gate closing door conducive to dynamic water, using slidably supported pattern, peace
Loaded on emergency gate gate slot 17,17 front two sides of emergency gate gate slot are water inlet passage side wall 16,17 bottom of emergency gate gate slot
Portion is water inlet passage bottom plate 15, and the top of emergency gate is equipped with lifting lug 1, and two sides are equipped with bearing emergency gate in gate slot up and down
The sliding block 2 of sliding, emergency gate include upper half-section gate and lower half-section gate, and upper half-section gate and lower half-section gate are by door leaf
Stringer 3 and door leaf crossbeam 6 form；Upper half-section gate locating has the first upstream face plate 7, and lower half-section gate locating has downstream panel 5
With the second upstream face plate 12, connected between upper half-section gate and lower half-section gate by wirerope 9, upper half-section gate and lower half-section
Baffle 4 is additionally provided between gate.
In the present embodiment, downstream panel 5, the first upstream face plate 7 and the second upstream face plate 12 are located at half-section gate
Upstream side, lower half-section gate downstream side and lower half-section gate upstream side.Connecting cross beam 11 is to connect on downstream panel 5 and second
Panel 12 is swum, it is main function position of the vertical water pressure on former gate figure that there are biggish water-heads for upper and lower surfaces
It sets.Baffle 4 is located at the top of downstream panel 5, and length is determined according to water inlet passage bottom plate 14, with the hinge of downstream panel 5
Fixation is connect, and is connect the root edge 8 of upper half-section gate with baffle 4 using wirerope 9.Wherein the root edge 8 of upper half-section gate is under
The root edge 13 of half-section gate is arranged obliquely；Baffle 4 is made of steel identical with lock gate leaf material, with lower half-section lock
Connection type between door can be welding or articulated connection.When connection type is welding, the length and width of baffle 4 distinguishes root
It is determined according to the height of water inlet passage bottom plate 14 and upper half-section gate back rake angle root edge 8, this connection type has operation
Simply, the advantages that lower half-section gate structure good integrity；It is illustrated herein using being articulated and connected 10 as embodiment, baffle 4
It can rotate freely, be reached with gate flap keeping parallelism to generate biggish water column pressure in gate flap dropping process at work
To vertical water pressure is increased under identical operating condition, to achieve the purpose that increasing water weight closes gate smoothly；Work as gate
When completely closing, baffle 4 is parallel with 6 Parallel to the flow direction of door leaf crossbeam under the impact of water flow；Gate is started to work complete to gate
When contract fully, the angle that baffle 4 rotates is operating angle.
After adding baffle, upper half-section gate only has back rake angle root edge and when lower half-section gate contacts, and upper and lower two sections gate exists
Downstream face can there are one section of gaps, rationally design barrier width according to this section of gap.Making it not influences half-section gate and lower half
The contact of gate and the normal opening and closing of gate are saved, and when the vertical water pressure that gate is born reaches peak value, vertical resultant force does not surpass
Cross the capacity of gate opening and closing device.
Specifically, the connection type of baffle and lower half-section gate main body can be for welding or by being articulated and connected.Welding connects
The mode of connecing is conducive to upper half-section gate after the half-section under emergency gate falls on gate slot bottom sill and smoothly drops down onto lower half-section gate top.Cause
This this connection type has many advantages, such as easy to operate, lower half-section gate structure good integrity.When using articulated connection mode,
During two section gates fall simultaneously, steel wire tensioning, baffle is upright, can increase the vertical hydraulic pressure of lower half-section gate
Power guarantees that lower half-section gate drops down onto bottom sill；Instantly half-section closing gate, when upper half-section gate continues to fall, looseness of steel wire ropes, two
The vertical spacing of section gate is gradually reduced, and the wirerope being connected with upper half-section gate bottom also starts to relax, and baffle is in water flow
Side opening is swum under effect gradually downward, two section gatehouse water flows are smooth, so that section gate is smoothly fallen to and lower section lock on guaranteeing
Door completely attaches to.
By taking emergency gate of the present invention is applied in concrete engineering as an example, when upstream water level 2760.0m, the level of tail water
2721.53m, when guide vane opening is 70%, gate can not continue to close when falling under moving in water apart from the bottom sill position about 1m, survey
The situation of change for obtaining former gate figure lasting force during dynamic water closes door is as shown in Figure 5.Using plane binodal gate of the present invention
Figure increases the vertical water pressure acted on gate, and gate is promoted smoothly to close door: 1. test discovery, former gate root edge figure
It is relatively reasonable, therefore the root edge of two section gates is all made of pattern identical with former gate root edge, to reduce the pop-up of pocket floor water flow
Power, and upstream sealing and side sealing are carried out in upper half-section gate bottom；2. being connected between two section gates with wirerope, control is vertical
Spacing is that 2m is tested；3. downstream side height of baffle plate is the vertical height of root edge, connected with steel hinge with lower half-section gate downstream side
It connects, centre connect with wirerope with upper half-section gate root edge, and when upper and lower internode is away from for 2m, wirerope pulling plate washer is straight for guarantee
Vertical, when section gate contact up and down, plate washer fully opens downstream.By physical experiments, measures the present invention and mentioned
The situation of change of lasting force during dynamic water closes door of gate figure out is as shown in Figure 6, the results showed that in unit guide vane opening
For figure of the present invention under 70% operating condition can increasing action in the vertical water pressure on gate, part is provided and closes power.
The present invention is not limited to embodiments described above.Above the description of specific embodiment is intended to describe and say
Bright technical solution of the present invention, the above mentioned embodiment is only schematical, is not restrictive.This is not being departed from
In the case of invention objective and scope of the claimed protection, those skilled in the art may be used also under the inspiration of the present invention
The specific transformation of many forms is made, within these are all belonged to the scope of protection of the present invention.
Claims (4)
1. a kind of plane binodal emergency gate for closing door conducive to dynamic water is installed on emergency gate gate slot using slidably supported pattern,
Two sides are water inlet passage side wall in front of emergency gate gate slot, and emergency gate gate slot bottom is water inlet passage bottom plate, feature
It is, the top of emergency gate is equipped with lifting lug, and two sides are equipped with the sliding block that bearing emergency gate slides up and down in gate slot, the thing
Therefore gate includes the upper half-section gate and lower half-section gate being made of door leaf stringer and door leaf crossbeam, the upper half-section gate locating
There is the first upstream face plate, the lower half-section gate locating has downstream panel and the second upstream face plate, and the upper half-section gate is under
It is connected between half-section gate by wirerope, is additionally provided with baffle between the upper half-section gate and lower half-section gate.
2. a kind of plane binodal emergency gate for closing door conducive to dynamic water according to claim 1, which is characterized in that the baffle
It is connected by wirerope with the root edge of the upper half-section gate, using welding or articulated connection between baffle and lower half-section gate.
3. a kind of plane binodal emergency gate for closing door conducive to dynamic water according to claim 2, which is characterized in that baffle is under
It uses between half-section gate and is smoothly fallen when welding connecting mode convenient for half-section gate upper after lower half-section gate falls on gate slot bottom sill
To lower half-section gate top；When using articulated connection mode, during two section gates fall simultaneously, steel wire tensioning,
Baffle is upright, it is possible to increase the vertical water pressure of lower half-section gate guarantees that lower half-section gate drops down onto bottom sill；Instantly half-section gate closes
It closes, when upper half-section gate continues to fall, the vertical spacing of looseness of steel wire ropes, two section gates is gradually reduced, with upper half-section gate bottom
The wirerope that portion is connected starts to relax, and baffle swims side opening gradually downward under flow action, and two section gatehouse water flows are smooth,
It is completely attached to guaranteeing that upper half-section gate is smoothly fallen to lower half-section gate.
4. a kind of plane binodal emergency gate for closing door conducive to dynamic water according to claim 1, which is characterized in that the downstream
It is connected with each other between panel and the second upstream face plate by connecting cross beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811455633.6A CN109537535B (en) | 2018-11-30 | 2018-11-30 | Planar double-section accident gate beneficial to closing door by moving water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811455633.6A CN109537535B (en) | 2018-11-30 | 2018-11-30 | Planar double-section accident gate beneficial to closing door by moving water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109537535A true CN109537535A (en) | 2019-03-29 |
| CN109537535B CN109537535B (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811455633.6A Active CN109537535B (en) | 2018-11-30 | 2018-11-30 | Planar double-section accident gate beneficial to closing door by moving water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068412A (en) * | 2019-05-14 | 2019-07-30 | 天津大学前沿技术研究院 | A kind of experimental rig and method measuring the quiet frictional resistance of gate |
| CN110068411A (en) * | 2019-05-14 | 2019-07-30 | 天津大学前沿技术研究院 | A kind of measurement gate moves the experimental rig and method of dynamic frictional resistance when water closes |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635096A (en) * | 2011-08-25 | 2012-08-15 | 邓旭林 | Passive gate bottom-edge device with function of automatic adjustment of water column pressure |
| CN207314293U (en) * | 2017-10-11 | 2018-05-04 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of high narrow down-the-hole planar slide emergency gate structure |
-
2018
- 2018-11-30 CN CN201811455633.6A patent/CN109537535B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635096A (en) * | 2011-08-25 | 2012-08-15 | 邓旭林 | Passive gate bottom-edge device with function of automatic adjustment of water column pressure |
| CN207314293U (en) * | 2017-10-11 | 2018-05-04 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of high narrow down-the-hole planar slide emergency gate structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068412A (en) * | 2019-05-14 | 2019-07-30 | 天津大学前沿技术研究院 | A kind of experimental rig and method measuring the quiet frictional resistance of gate |
| CN110068411A (en) * | 2019-05-14 | 2019-07-30 | 天津大学前沿技术研究院 | A kind of measurement gate moves the experimental rig and method of dynamic frictional resistance when water closes |
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| Publication number | Publication date |
|---|---|
| CN109537535B (en) | 2020-12-15 |
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